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GMC 12656444 Coolant Temperature Sensor

2015-2022 GMC

Customer Questions & Expert Answers (5)
12656444 GM Coolant Temperature Sensor Product Photo 1 of 2
  • Part Description
    Sensor, Computer Control Sensor
  • Replaces
    12636534
  • Manufacturer
    General Motors
Make sure this part fits
$12.47 MSRP: $25.21
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  • Specifications
  • Fitment
  • Q&A
  • Product Specifications

    BrandGenuine GMC
    Manufacturer Part Number12656444
    Part DescriptionCoolant Temperature Sensor; Sensor, Computer Control Sensor
    Item Dimensions2.1 x 2.1 x 1.1 inches
    Item Weight0.40 Pounds
    ConditionNew
    Fitment TypeDirect Replacement
    Replaces12636534
    ManufacturerGeneral Motors
    SKU12656444
    WarrantyThis genuine GM part is guaranteed by GM's factory warranty.
    Shipping & ReturnShipping Policy Return Policy
    Warning: California's Proposition 65
  • Vehicle Fitment

    Year Make Model Engine Important vehicle option details
    2017-2021 GMC Acadia4 Cyl 2.5LSLE SUV, SLE2 & ALL TERRAIN SUV, SLE2 SUV, SLT & ALL TERRAIN SUV, SLT SUV
    2015-2022 GMC Canyon4 Cyl 2.5LCREW CAB - 5'2" BOX, EXT CAB - 6'2" BOX, EXTENDED CAB - 6'2" BOX, SLE CREW CAB - 5'2" BOX, SLE EXTENDED CAB - 6'2" BOX, SLT CREW CAB - 5'2" BOX, SLT EXTENDED CAB - 6'2" BOX
    2018-2020 GMC Terrain4 Cyl 2.0L4 DOOR SLE2, 4 DOOR SLT1, 4 DOOR SLT2
  • Customer Questions & Expert Answers

    Q:
    I'm wondering if this is complete and correct part for my vehicle.
    A:
    You can Select Your Vehicle to check if 12656444 fits your vehicle.
    Posted and answered by GM Parts Specialist Julian
    Q:
    What is the process for reinstalling the Coolant Temperature Sensor for the 2018 Chevrolet Malibu? Posted by Anabel V.
    A:
    Reinstall the sensor by reversing the removal process and refill the cooling system. You can Select Your Vehicle to see complete installation and repair tips.
    Answered by GM Parts Specialist Nicholas / Feb 17, 2026
    Q:
    Where is the Coolant Temperature Sensor located for the 2017 GMC Acadia? Posted by Farid K.
    A:
    The ECT sensor is located on the front bank cylinder head, near the engine oil dipstick, just below the valve cover. You can Select Your Vehicle to see complete installation and repair tips.
    Answered by GM Parts Specialist Fernando / Nov 16, 2025
    Q:
    Does this part come with a new retaining clip? Posted by Adam M.
    A:
    No, this does not include a new retaining clip
    Answered by GM Parts Specialist Matt / Feb 01, 2021
    Q:
    Where does this sensor mount? Posted by Raymond T.
    A:
    This sensor mounts near the coolant reservoir tank
    Answered by GM Parts Specialist Matt / Feb 01, 2021

Genuine GM Part 12656444, the Right Choice

To ensure reliability, purchase GM part # 12656444 Coolant Temperature Sensor. It is sometimes referred to as GMC Coolant Temperature Sensor. Directly from GM, genuine parts are superb with regards to quality, longevity, and fit. Every single part passed stringent quality testing, so you can be sure that it's safe, durable, and built to perform like your original parts. This part fits specific GMC Acadia, Canyon, Terrain models.

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